CN107237890A - Sealing structure and encapsulating method under a kind of bad working environments - Google Patents
Sealing structure and encapsulating method under a kind of bad working environments Download PDFInfo
- Publication number
- CN107237890A CN107237890A CN201710665516.1A CN201710665516A CN107237890A CN 107237890 A CN107237890 A CN 107237890A CN 201710665516 A CN201710665516 A CN 201710665516A CN 107237890 A CN107237890 A CN 107237890A
- Authority
- CN
- China
- Prior art keywords
- sealing
- peeling machine
- main shaft
- folded ring
- folded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
Abstract
The invention provides the sealing structure under a kind of bad working environments and encapsulating method, bearing including peeling machine main shaft and outside peeling machine main shaft, in addition to the folded ring of sealing, the bearing inner surface are provided with annular groove, the folded ring of sealing is cylindrical in annular groove, and inner circumferential is set on peeling machine main shaft；The bearing is provided with multiple gas circuits being circumferentially uniformly arranged, and the gas circuit and peeling machine main shaft are axially in parallel, and the gas circuit is communicated close to peeling machine interior side and with annular groove located at the folded ring of sealing.The tensioner of this body structure of the folded ring of sealing make use of to play sealing function, it is multiple to use the characteristics of having labyrinth sealing again, combined with compressed air and improve the sealed reliability of folded ring, therefore, sealing is sufficiently stable, work well, the semicircle that ring makes subdivision is folded while will seal, overcome folded ring sealing and the shortcoming being difficult is installed.
Description
Technical field
The invention belongs to technical field of metallurgical equipment, and in particular to sealing structure and sealing side under a kind of bad working environments
Method.
Background technology
Peeling machine is a kind of special purpose machine tool, for the processing to circle blank surface.The main shaft major axis diameter of peeling machine is big, if
Standby outside cutting liquid measure is more and can be splashed to all directions, and operating mode is severe, strictly to control cutting fluid to be seeped into equipment
Portion, otherwise can cause damage to equipment.Conventional sealing ring can not meet that this diameter is big, the use requirement of bad working environments.
Major diameter sealing uses standard and folds ring sealing sometimes in metallurgical equipment, and it is that make use of itself to tie to fold ring sealing
The tensioner of structure is multiple to use the characteristics of having labyrinth sealing again so as to play sealing function, therefore, seals sufficiently stable, effect
Fruit is good, and bearing being mainly used under the mal-conditions such as high temperature, corrosion etc. is sealed, for improving adverse circumstances to reduce high consumption
Oil mass and improvement bearing use condition, but have the shortcomings that installation is difficult.
The content of the invention
The purpose of the present invention is to overcome the above-mentioned problems in the prior art there is provided reliable close under a kind of bad working environments
Encapsulation method.
The technical scheme that the present invention is provided is as follows：
A kind of sealing structure under bad working environments, including peeling machine main shaft and the bearing outside peeling machine main shaft, in addition to it is close
The folded ring of envelope, the bearing inner surface is provided with annular groove, and the folded ring of the sealing is cylindrical in annular groove, and inner circumferential is set in peeling machine
On main shaft；
The bearing is provided with multiple gas circuits being circumferentially uniformly arranged, and the gas circuit and peeling machine main shaft are axially in parallel, described
Gas circuit is communicated close to peeling machine interior side and with annular groove located at the folded ring of sealing.
The folded ring of sealing is made up of two semicircular rings.
Described to seal folded ring for the folded ring of biplate sealing and be provided with multiple, rings series connection is folded in multiple sealings and two neighboring sealing is folded
Stagger the port of ring.
The a diameter of 6-8mm of gas circuit.
The gas circuit is evenly distributed 6-8.
Present invention also offers a kind of encapsulating method, using the sealing structure under bad working environments, by compressed air from gas circuit
Be blown into the annular groove for accommodating the folded ring of sealing, and by annular groove along the space between peeling machine main shaft and bearing to peeling machine outside
Portion, and these spaces are filled with, continuous is formed, the debris outside peeling machine is cannot be introduced into inside peeling machine, is realized
Sealing.
The peeling machine major axis diameter is not more than 1300mm.
The beneficial effects of the invention are as follows：
Sealing structure under this bad working environments that the present invention is provided, for the main frame main shaft of peeling machine, make use of the folded ring of sealing
The tensioner of this body structure is multiple to use the characteristics of having labyrinth sealing again, and compressed air to combine so as to play sealing function
The sealed reliability of folded ring is improved, therefore, seals sufficiently stable, works well, while folded ring makes subdivision half will be sealed
Circle, overcomes folded ring sealing and installs the shortcoming being difficult.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1st, folded ring is sealed；2nd, gas circuit；3rd, peeling machine main shaft；4th, bearing.
Embodiment
Embodiment 1：
In order to solve peeling machine in cutting, because cutting fluid is splashed to all directions, not only cause operating mode severe, and cutting
Liquid can be seeped into device interior, to the hurtful technical problem of equipment.Present embodiments provide a kind of severe work as shown in Figure 1
Sealing structure under condition, including peeling machine main shaft 3 and the bearing 4 outside peeling machine main shaft 3, in addition to the folded ring 1 of sealing, it is described
The inner surface of bearing 4 is provided with annular groove, and the folded ring 1 of the sealing is cylindrical in annular groove, and inner circumferential is set on peeling machine main shaft 3；
The bearing 4 is provided with multiple gas circuits 2 being circumferentially uniformly arranged, and the gas circuit 2 and peeling machine main shaft 3 are axially in parallel,
The gas circuit 2 is communicated close to peeling machine interior side and with annular groove located at the folded ring 1 of sealing.
The principle of the invention：The folded one side of ring 1 of sealing avoids sealed medium outflow between main shaft and bearing 4, on the other hand
Combine using the tensioner and compressed air of sealing 1 body structure of folded ring and improve the sealed reliability of folded ring, it is to avoid be outside miscellaneous
Matter enters.
The course of work：
Compressed air is blown into from gas circuit 2 in the annular groove for accommodating the folded ring 1 of sealing, and by annular groove along need sealed two pieces it
Between space be filled with to device external, and these spaces, because these air have pressure, continuous can be formed,
The cutting fluid of outside is blown away, it is cannot be introduced into device interior.
Sealing structure under this bad working environments that the present embodiment is provided, for the main frame main shaft of peeling machine, make use of close
The tensioner of envelope 1 body structure of folded ring is so as to play sealing function, and compressed air combines and improves the sealed reliability of folded ring, because
This, seals sufficiently stable, works well.
Embodiment 2：
On the basis of embodiment 1, present embodiments provide the sealing structure under a kind of bad working environments, the sealing fold ring 1 by
Two semicircular ring compositions.
It will seal and fold the semicircle that ring 1 makes subdivision, overcome folded ring sealing and the shortcoming being difficult is installed.
In the present embodiment, described to seal folded ring 1 for the folded ring of biplate sealing and be provided with multiple, multiple sealings are folded rings 1 and connected
And the port of the two neighboring folded ring 1 of sealing is staggered.The a diameter of 6-8mm of the gas circuit 2.The gas circuit 2 is evenly distributed 6-8.
The cardinal principle of the folded ring 1 of sealing is labyrinth seal, and the folded ring 1 of several sealings, the folded ring 1 of sealing are set up around main shaft
A series of throttle clearance and expansion cavity are formed between the folded ring 1 of sealing, is leading to sealed medium between main shaft and bearing 4
Throttle effect is produced when crossing the gap in tortuous labyrinth and reaches the purpose of Drain Resistance.When leakage liquid stream flows in labyrinth, because of liquid
Flow and produce friction, make flows decrease, flow reduces.Relevant with cross sectional shape with the length of passage in simple terms, runner is got over
Long, ring gear top is sharper, and flow is smaller, and sealing effectiveness is better, when being circulated through labyrinth port in addition, can be received because of inertia effects
Contracting, the section of a fluid stream diminishes and can also produce sealing effectiveness.
Embodiment 3：
On the basis of above-described embodiment, a kind of encapsulating method is present embodiments provided, using the sealing structure under bad working environments,
Compressed air is blown into from gas circuit 2 in the annular groove for accommodating the folded ring 1 of sealing, and by annular groove along peeling machine main shaft 3 and bearing 4
Between space to outside peeling machine, and these spaces are filled with, form continuous, make the debris outside peeling machine can not
Into inside peeling machine, sealing is realized.
The diameter of peeling machine main shaft 3 is not more than 1300mm.I.e. this method can be used for that other operating modes are severe, sealed diameter most
The big occasion for arriving 1300mm.
In summary, the sealing structure under this bad working environments that the present invention is provided, for the main frame main shaft of peeling machine, profit
With the tensioner of sealing 1 body structure of folded ring so as to play sealing function, it is multiple using having labyrinth sealing again the characteristics of, and
Compressed air combines and improves the sealed reliability of folded ring, therefore, seals sufficiently stable, works well, while sealing is folded into ring 1
The semicircle of subdivision is made, folded ring sealing is overcome and the shortcoming being difficult is installed.
The part and structure that above example is not described in detail belong to the well-known components and common structure or conventional of the industry
Means, are not described one by one here.
It is exemplified as above be only to the present invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (7)
1. the sealing structure under a kind of bad working environments, including peeling machine main shaft（3）With located at peeling machine main shaft（3）Outer bearing
（4）, it is characterised in that：Also include the folded ring of sealing（1）, the bearing（4）Inner surface is provided with annular groove, and ring is folded in the sealing（1）
Cylindrical to be located in annular groove, inner circumferential is set in peeling machine main shaft（3）On；
The bearing（4）It is provided with multiple gas circuits being circumferentially uniformly arranged（2）, the gas circuit（2）With peeling machine main shaft（3）Axle
To parallel, the gas circuit（2）Located at the folded ring of sealing（1）Communicate close to peeling machine interior side and with annular groove.
2. the sealing structure under a kind of bad working environments according to claim 1, it is characterised in that：The folded ring of sealing（1）
It is made up of two semicircular rings.
3. the sealing structure under a kind of bad working environments according to claim 1, it is characterised in that：The folded ring of sealing（1）
For the folded ring of biplate sealing and provided with multiple, multiple folded rings of sealing（1）Series connection and the folded ring of two neighboring sealing（1）Port stagger.
4. the sealing structure under a kind of bad working environments according to claim 1, it is characterised in that：The gas circuit（2）Diameter
For 6-8mm.
5. the sealing structure under a kind of bad working environments according to claim 1, it is characterised in that：The gas circuit（2）Along week
To uniform 6-8.
6. a kind of encapsulating method, usage right requires the sealing structure under the bad working environments described in any one of 1-5, its feature exists
In：By compressed air from gas circuit（2）It is blown into the folded ring of receiving sealing（1）Annular groove in, and by annular groove along peeling machine main shaft
（3）And bearing（4）Between space to outside peeling machine, and these spaces are filled with, form continuous, make outside peeling machine
The debris in portion cannot be introduced into inside peeling machine, realize sealing.
7. a kind of encapsulating method according to claim 6, it is characterised in that：The peeling machine main shaft（3）Diameter is not more than
1300mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665516.1A CN107237890B (en) | 2017-08-07 | 2017-08-07 | Sealing structure and encapsulating method under a kind of bad working environments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710665516.1A CN107237890B (en) | 2017-08-07 | 2017-08-07 | Sealing structure and encapsulating method under a kind of bad working environments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237890A true CN107237890A (en) | 2017-10-10 |
| CN107237890B CN107237890B (en) | 2019-09-24 |
Family
ID=59989536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710665516.1A Active CN107237890B (en) | 2017-08-07 | 2017-08-07 | Sealing structure and encapsulating method under a kind of bad working environments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107237890B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3698724A (en) * | 1969-11-12 | 1972-10-17 | Commissariat Energie Atomique | Sealing device |
| FR2765653A1 (en) * | 1997-07-03 | 1999-01-08 | Hispano Suiza Sa | Shaft seal for turbo motors in aircraft, used for sealing transmission of movement between gearbox and hydraulic pump |
| CN200982412Y (en) * | 2006-12-04 | 2007-11-28 | 中国南车集团株洲电力机车有限公司 | Rolling stock spiral ring labyrinth type axle box seal structure |
| CN201103686Y (en) * | 2007-09-11 | 2008-08-20 | 大连华根机械有限公司 | Principal shaft sealing device |
| CN201187578Y (en) * | 2008-05-06 | 2009-01-28 | 武汉钢铁(集团)公司 | Opposite open type composite seal ring for coke heat performance reaction test furnace |
| CN201330851Y (en) * | 2008-12-30 | 2009-10-21 | 洛阳轴研科技股份有限公司 | Air sealing structure of electric main shaft |
| CN201982668U (en) * | 2011-03-23 | 2011-09-21 | 刘森钢 | Radial blowing device of high-speed motorized spindle |
| CN204140875U (en) * | 2014-09-24 | 2015-02-04 | 日工（上海）工程机械有限公司 | Concrete mixer axis seal apparatus |
| CN204921991U (en) * | 2015-06-26 | 2015-12-30 | 成都一通密封有限公司 | Two lamella formula carbocycles are sealed |
-
2017
- 2017-08-07 CN CN201710665516.1A patent/CN107237890B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3698724A (en) * | 1969-11-12 | 1972-10-17 | Commissariat Energie Atomique | Sealing device |
| FR2765653A1 (en) * | 1997-07-03 | 1999-01-08 | Hispano Suiza Sa | Shaft seal for turbo motors in aircraft, used for sealing transmission of movement between gearbox and hydraulic pump |
| CN200982412Y (en) * | 2006-12-04 | 2007-11-28 | 中国南车集团株洲电力机车有限公司 | Rolling stock spiral ring labyrinth type axle box seal structure |
| CN201103686Y (en) * | 2007-09-11 | 2008-08-20 | 大连华根机械有限公司 | Principal shaft sealing device |
| CN201187578Y (en) * | 2008-05-06 | 2009-01-28 | 武汉钢铁(集团)公司 | Opposite open type composite seal ring for coke heat performance reaction test furnace |
| CN201330851Y (en) * | 2008-12-30 | 2009-10-21 | 洛阳轴研科技股份有限公司 | Air sealing structure of electric main shaft |
| CN201982668U (en) * | 2011-03-23 | 2011-09-21 | 刘森钢 | Radial blowing device of high-speed motorized spindle |
| CN204140875U (en) * | 2014-09-24 | 2015-02-04 | 日工（上海）工程机械有限公司 | Concrete mixer axis seal apparatus |
| CN204921991U (en) * | 2015-06-26 | 2015-12-30 | 成都一通密封有限公司 | Two lamella formula carbocycles are sealed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107237890B (en) | 2019-09-24 |
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